Near-Field Microwave Imaging Based on Aperture Raster Scanning With TEM Horn Antennas

Amineh, Reza K.; Ravan, Maryam; Trehan, Aastha; Nikolova, Natalia K.

doi:10.1109/tap.2010.2103009

Cited by 139 publications

(93 citation statements)

References 31 publications

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“…The use of the dielectric layers of ε r = 10.2 provides: i) an impedance matching over an ultra-wide band of frequency, ii) a high gain and, iii) a compact antenna without the need of coupling liquids. Using coupling liquids results in additional losses and complicates the conservation and sterilization of a clinical setting [15].…”

Section: Antenna Designmentioning

confidence: 99%

“…Our imaging setup is similar to that presented by Amineh et al [15], but with modifications, as discussed later. The imaging setup in [15] uses two antennas, one to send a UWB signal and the other to receive it, to accomplish a 2-D scan in the yz plane.…”

Section: S-parameters Analysis With Breast Tumormentioning

confidence: 99%

“…The imaging setup in [15] uses two antennas, one to send a UWB signal and the other to receive it, to accomplish a 2-D scan in the yz plane. The breast is compressed between the antennas, and the antennas move together in fixed steps until the breast is completely scanned.…”

Section: S-parameters Analysis With Breast Tumormentioning

confidence: 99%

“…Aperture raster scan is a microwave imaging method used in biomedical applications. It is a simple and fast image acquisition method, where water was used initially as a coupling liquid between the antenna and tissue [14], but at the cost of supplementary loss, complicated system maintenance and limited resolution [15]. The need for coupling liquid can be eliminated with antenna size reduction using aperture raster scan [15,16].…”

Section: Introductionmentioning

confidence: 99%

“…It is a simple and fast image acquisition method, where water was used initially as a coupling liquid between the antenna and tissue [14], but at the cost of supplementary loss, complicated system maintenance and limited resolution [15]. The need for coupling liquid can be eliminated with antenna size reduction using aperture raster scan [15,16]. However, such a scanning method is a two steps process; first it requires a scan of the breast phantom with tumors absent, which is the background for farther imaging, and secondly one needs to subtract the background from the image when the tumors are present.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Simulation Design and Testing of a Dielectric Embedded Tapered Slot Uwb Antenna for Breast Cancer Detection

Al-Zuhairi¹,

Gahl²,

Al-Azzawi³

et al. 2017

PIER C

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Abstract-A distortion-less ultra-wideband tapered slot antenna is designed to achieve wide band impedance matching and high gain without requiring coupling liquids. The antenna is embedded in a suitable dielectric material for compact size and performance improvement. The near-field test is simulated by placing several field probes near the antenna to plot the radiation pattern and polarization isolation. The antenna exhibits a highly directive pattern and polarization isolation in near field. The time domain antenna distortion is tested by calculating the fidelity and group delay. The results show low distortion and also show the importance of covering the antenna by dielectric layers for bandwidth increment and distortion reduction. To evaluate the antenna performance in breast cancer detection, three breast phantoms are imaged by using the raster scan imaging method. Two approaches are proposed to detect tumors without the need of breast background data. The approaches based on the effect of the tumor on transmission and reflection parameters on the frequency band allowed for medical applications. The obtained images show the antenna to be a strong candidate for breast imaging as well as in tumor detection for different scenarios that include complex multi-layer phantom and small tumor.

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Section: Antenna Designmentioning

confidence: 99%

Section: S-parameters Analysis With Breast Tumormentioning

confidence: 99%

Section: S-parameters Analysis With Breast Tumormentioning

confidence: 99%